Vacuum-positive pressure smelting and solidifying equipment

Abstract

The invention relates to equipment for manufacturing porous metal and alloy equipment with a vertical bottom surface porous structure by adopting a smelting and bottom-oriented solidification process under vacuum and high-pressure atmospheres. According to the invention, a smelting crucible and an oriented solidifying casting mould are the same device, the lateral wall of the device has conical degree, an insulated ceramic coating is coated inside the device, or a heat-insulation ceramic sleeve is lined in the device in a close fit way, and the device and a water-cooled induction coil wound on the periphery of the device are separated by a puddling material; and a water-cooled crystallizer is arranged below the smelting crucible and has an automatic lifting function. During smelting, the water-cooled crystallizer is far away from the smelting crucible, namely the oriented solidification casting mould; and during solidifying, the surface of the water-cooled crystallizer and the bottom surface of the smelting crucible, namely the oriented solidification casting mold are closely jointed. The water flow velocity in the water-cooled crystallizer is controlled through pressure; after the oriented solidification is finished, the equipment can obliquely rotate for 120DEG through an external tilting mechanism, and a porous metal ingot is taken out. The vacuum-positive pressure smelting and solidifying equipment can be used for producing porous metal materials used for fields of aircraft industry, electronics, medicines and biochemical and metallurgical machinery, petroleum chemical engineering, energy environment protection, national defense and war industry, and the like.

Description

[0001] technical field [0002] The invention relates to vacuum-positive pressure smelting directional solidification equipment, in particular to equipment for preparing porous metals and alloys with a vertical bottom surface pore structure by adopting smelting and bottom directional solidification processes under vacuum and high pressure atmosphere. Background technique [0003] Porous metal material is a kind of metal material with obvious pore characteristics, which has excellent physical properties and good mechanical properties, including low density, high rigidity, large specific surface area, good energy absorption and vibration reduction performance, good noise reduction effect, electromagnetic High shielding performance, its application has covered aviation, electronics, medicine and biochemistry, metallurgical machinery, petrochemical, energy and environmental protection, national defense and nuclear technology and other fields. In order to obtain porous metals wit...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the problem to be solved by the present invention is to provide a porous metal preparation equipment in which smelting and directional solidification are completed in the same container, which is not only easy to operate, but also can avoid the uneven porous metal structure caused by eddy currents, Poor controllability and other issues

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